Windmill.



A. M. 00X.

WINDMILL.

APPLICATION FILED DEO.30,1909.

955,768. Patented Apr. 19,1910.

2'SHEETSSHBET 1.

q vi/imeoaeo A. M. COX.

WINDMILL.

APPLICATION FILED 1130;30, 1909.

Snow

Emma whoa 14/. C01.

'2 BHBETSSHEBT 2.

Patented Apr. 19, 1910.

UNITED STATES PATENT OFFICE.

ALPHEUS M. COX, 0F I-IAVILAND, KANSAS.

WINDMILL.

To all whom it may concern:

Be it known that I, ALPHnUs M. Cox, a citizen of the United States,residing at I-Iaviland, in the county of Kiowa and State of Kansas, haveinvented certain new and useful Improvements in WVindmills; and I dodeclare the followin to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to an improved windmill.

The object of the invention is to provide a simply constructed andefficient windmill which will produce a maximum amount of power with aminimum consumption of energy and which is self adjusting to regulateits speed.

Another object is to so construct a windmill as to dispense with thewrist pin in ordinary use.

WVith the foregoing and other objects in view, the invention consists ofcertain novel features of construction, combination and arrangement ofparts, as will be more fully described and particularly pointed out inthe appended claims.

In the accompanying drawings, Figure 1 is a front elevation of thisimproved windmill, with the parts in operative position; Fig. 2 is aside elevation, partly in section, of the upper portion thereof; Fig. 3is a transverse vertical section taken on the line 3-3 of Fig. 2; Fig.4; is a vertical transverse section taken on the line 4% of Fig. 2; Fig.5 is a similar view taken on line 55 of Fig. 2; Fig. 6 is a detailperspective view of one of the sections of the windmill; Fig. 7 is adetail sectional view of a portion of the wheel; Fig. 8 is a similarview of another portion. Fig. 9 is a detail vertical sectional view of aportion of the wheel and standard.

In the embodiment illustrated, the wind or power wheel is supported inan ordinary windmill tower or frame 1, having a platform 2 at its upperend and provided with a central aperture, through which a hollow shaft 3extends. The lower portion of the tower is provided with a brace 4,through which the shaft 3 also extends, ball bearings being preferablyprovided for said shaft where it passes through said platform andSpecification of Letters Patent.

Application filed December 30, 1909.

Patented Apr. 19, 1910. Serial No. 535,584.

brace. This shaft 3 is provided with a longitudinally extending slot 5,preferably arranged ust above the platform 2 for a purpose hereinafterto be described.

A hollow spindle 6 extends throu h the shaft 3 and is provided midwayits ength with a laterally extending lug 7 which projects through theslot 5 in the shaft 3 and is designed to be connected with an eccentricto be described. A hollow shaft 8 extends laterally from the upper endof the shaft 3 and is designed to support the wind wheel, hereinafterdescribed. A spindle 9 extends through the shaft 8 and is provided atits outer end with a head 10 and the inner end thereof is connected withthe free end of one arm of a bell crank lever 11 which is fulcrumed on atail vane 12 which is also secured to the upper end of the shaft 3 andextends substantially in alinement with the shaft 8. An element 13 issecured to the free end of the other arm of said lever 11 and extendsdownwardly through the hollow spindle (3 into position for convenientoperation, said member 13 being operable to move said rod or spindle 9inwardly to cause the head thereof to engage means, hereinafterdescribed, on the wind wheel for operating the vanes or blades of saidwheel to throw them into inoperative position.

A wind wheel 14 is mounted on the shaft 8 and is preferably providedwith two wooden boxings15 and 16, each of which is preferablyconstructed of two separably connected members 17 and 18, securedtogether by belts or other suitable means to provide for the readyremoval and assembling of the parts by an unskilled workman. A sleeve 19is arranged between these boxings 15 and 16 and is designed to hold thewheel against slipping longitudinally on the spindle. The wheel 14 ispreferably constructed, as shown, having a plurality of radiallyextending arms, as 21, arranged at the inner end of the hub of saidwheel and a number of similar arms, as 22, are arranged at the front endof the hub of the wheel in staggered relation to the arms 21. The frontend of the hub of this wheel is also provided with a plurality oflongitudinally extending slit lugs, as 23, which are arranged to form anannular flange on the outer face of the wheel hub. A plurality of bars,as 24, are pivotally mounted intermediately of their ends in the freeends of the arms 22 and the inner ends of these bars 24 converge towardeach other and are mounted in the slits of the lugs 23 with their endsarranged below the head 10 of the spindle 9 in positionto be engaged bysaid head, for a purpose hereinafter described. The outer ends of thesebars 24 are bifurcated and flared outwardly in opposite directions, saidbifurcated ends. 25 being apertured to receive the opposite ends of rodsas 26, one of which is mounted between two of the adjacent bars.Pivotall mounted on these rods 26 are bars 27 whici are preferablysubstantially U -shaped in cross section and on which are mounted aplurality of obliquely disposed blades, as 28, having the inner endsthereof converging toward each other. A spring arm, as 29, is rigidlysecured at one end to each of the arms 21 and at its opposite end ispivotally connected with the member 27 at a point midway of its length,and at the rear of the connection of said blades to said member 27,whereby it will be obvious that the inward movement of the spindle 9will cause its head 10 to engage the free ends of the bars 24: and movetheir other ends outwardly to rock the member 27 carrying the blades 28to throw said blades into substantially horizontal position to renderthem inoperative,

the blade carrying members 27 being adapted to swing independently ofeach other.

When the blades are thrown into horizontal position, the spring arms 29are bent or'bowed inwardly, owing to the fact that the pivotalconnection thereof with the members 27 is out of alinement with thehinged connections of said members with the bars 24. When the inner endsof the bars 24L are released, the spring arms 29 straighten out andforce the blades into operative position. A toothed eccentric 30 ismounted on the rear face of the hub of the wheel 14 and on the rotationof said wheel meshes with teeth arranged on the inner face of an annularmember 20 to which a spring bar 31 'is connected at one end. This bar 81is connected at its other end with the lugs 7 on the spindle 6, wherebythe spindle 6 is reciprooated within the shaft 3 and a pump (not shown)connected with the lower end of said spindle thereby operated. WVhen itis desired to throw the wheel out of operation, the member 13 is moveddownwardly, thereby-drawing the spindle 9 to its extreme inward movementand causing all of the blades carried by the sections 27 to be held insubstantially horizontal position. When the wind exceeds a certainspeed, the revolution of the wheel throws the weight of the sections 27on the spring arms 29 which will cause said arms to bend or be bowedinwardly and thereby throw the blades 28 more or less out of a verticalplane accord ing to the velocity of the wheel and thereby reduce thespeed of the wheel and cause it to rotate at a predetermined speed.

' From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention, as defined inthe'appended claims.

Having thus described my invention, what I claim is:

1. A windmill comprising a supporting structure, a standard revolublymounted therein, an arm extending laterally from the upper end of saidstandard, a wind wheel revolubly mountedon said arm and having radiallyextending arms at one end of the hub thereof, spring bars fixed at oneend to said arms, similar arms extending from the other end of the huband arranged in staggered relation to the first mentioned arms, memberspivotally mounted intermediately of their ends on said last mentionedarms, a series of obliquely disposed bladesmounted between the outerfree ends of said members, and means operable to engage the inner freeends of said 'members for throwing said blades into inoperativeposition.

2. A windmill wheel comprising a hub, arms extending radially from oneend of said hub, similar arms extending from the other end of the hub,an annular flange 0n the outer end of said hub provided with a pluralityof spaced open slots, bars pivoted intermediately of their ends in thefree ends of said last mentioned arms with their inner ends convergingand extending through said slots, a member operable longitudinally ofsaid hub and having a head for overlapping the inner ends of said bars,blade carrying members pivotally connected with the free outer ends ofsaid bars, resilient arms fixed,

at one end to said first mentioned radial arms and pivotally connectedat their other ends to said blade carrying members, and means operableto engage the free inner ends of said bars toswing said blade carryingmembers to throw the blades into inoperative position.

3. A windmill wheel comprising a hub,

arms extendin radially from one end of said hub, simi ar arms extendingfrom the other end of the hub, an annular flange on the outer end ofsaid hub provided witha plurality of spaced open slots, bars pivotedintermediately of their ends in the free ends of said last mentionedarms, blade carrying members pivotally connected with the free outerends of said bars, resilient arms fixed at one end to said firstmentioned radial arms and pivotally connected at their other ends tosaid blade carrying members, and means for controlling the headoverlapping the free inner ends of said bars to swing said bladecarrying members to throw the blades into inoperative position.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ALPHEUS M. COX. Witnesses:

ISAAC N. CARVER, SYLVESTER JONES.

